ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,875, issued on July 15, was assigned to CLEAN POWER HYDROGEN GROUP Ltd. (Doncaster, Great Britain).
"Heat exchanger" was invented by Nigel David Lister Williamson (Dronfield, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heat exchanger comprises a plurality of cells formed by a stack of alternate planar flow-guide plates (1) and heat transfer plates (2), each heat transfer plate having at least three apertures (3, 4, 6) therethrough, each aperture defining a part of a respective one of at least three fluid flow paths in the heat exchanger. Each flow-guide plate has apertures therethrough corresponding to at least two of the flow pat...